Biology

Physiology

Wailmer resembles a large spherical whale with no tail. It has a dark blue topside and a tan underbelly with groves. It has two fins that have finger-like appendages, baleen plates that resemble teeth, and a blowhole on the top of its head.

Gender differences

None.

Special abilities

Wailmer can fill itself with water and turn itself into a bouncy ball. The more water it sucks in, the bouncier it becomes.

Behavior

They are known to be very playful Pokémon. It loves to startle people by forcefully snorting out seawater it stores inside its body out of its nostrils, but it may become lethargic if it becomes dry.

Habitat

Diet

They eat over a ton of food a day, which they filter with their baleen plates.

In the anime

Wailmer in the anime

Major appearances

A Wailmer was befriended by Robin, a man who was living on an uncharted island, in Island Time. The Ball Whale Pokémon evolved into a Wailord in order to transport Robin, Ash and his friends to a ship heading to Ever Grande City, though Robin later decided that he wanted to go back to the island.

In Leading a Stray!, Ash assisted a Wailmer that was trapped in the sewers in rejoining its friends in the ocean. It later evolved into a Wailord in the same episode.

In the TCG

Game data

NPC appearances

Pokémon Channel: On the beach, the player can fish for Pokémon with the fishing rod and bait provided. Wailmer is uncommon, but if the player reels Wailmer to the shore, the player can see the tremendous size difference between Wailmer and Pikachu.

Trivia

Wailmer and Onix are the only Pokémon which evolve into a Pokémon with a large overworld sprite in Pokémon HeartGold and SoulSilver. Wailmer is the only one of the two, however, that can evolve without being returned to its Poké Ball, as Onix must be traded to evolve.